Ejaculation is a complex physiological process involving coordinated activity of the nervous system, reproductive organs, and pelvic muscles. It occurs in two main phases: emission and expulsion.
During the emission phase, sperm from the testes and epididymis are transported through the vas deferens toward the urethra. At the same time, secretions from the seminal vesicles and prostate gland combine with sperm to form semen.
The expulsion phase involves rhythmic contractions of pelvic muscles that propel semen through the urethra and out of the body.
Neurological signals originating in the spinal cord regulate erotic these processes. Disruption of nerve pathways due to injury or disease may impair ejaculation and affect fertility.
Understanding the physiology of ejaculation is important for diagnosing disorders such as delayed ejaculation or retrograde ejaculation.
Leave a Reply